# Thermodynamics (Gibbs Energy Change and Equilibrium) MCQs with FREE PDF

We have the best collection of Gibbs Energy Change and Equilibrium MCQs and answer with FREE PDF. These Gibbs Energy Change and Equilibrium MCQs will help you to prepare for any competitive exams like: NEET, AIIMS, JEE Mains, JEE Advance, IIT JEE, JIPMER and other Exams at all levels – you just have to practice regularly.

## Gibbs Energy Change and Equilibrium MCQs

a) endergonic

b) exergonic

c) exothermic

d) endothermic

#### 2. Which of the following is not a type of exergonic reaction?

a) formation of table salt from Sodium and chlorine

b) combustion reaction

c) chemiluminescence

d) photosynthesis

#### 3. The Gibbs free energy is positive when a change in enthalpy and change in entropy are positive at

a) high temperatures

b) low temperature

c) all temperatures

d) only at 0 Kelvin

a) 163 kJ/mol

b) 163 J/mol

c) 163 kJ

d) 163 k/mol

#### 5. In the equation, ?G = – 2.303 RT logK, what is K?

a) change in temperature

b) kelvin

c) equilibrium constant

d) change in enthalpy

a) ?G = -nFEcell

b) G = -nFEcell

c) ?G = -nEcell

d) ?G = -nFcell

a) 96500 C

b) 95600 C

c) 9560 C

d) 9650 C

#### 8. Find out whether the following reaction is spontaneous or not at 127 degrees centigrade? N2(g) + 3H2(g) ? 2NH3(g); ?H = 92.22 kJ/mol and ?S = -198.75 J/K-mol.

a) it is spontaneous

b) it is not spontaneous

c) it may be spontaneous

d) cannot predict

a) 7.3 cal

b) -5.3 Kcal

c) 7.3 Kcal

d) -7.3 Kcal

a) 3.4 kcal

b) 3.4 cal

c) 3.4 kJ

d) 3.4 J